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鄱阳湖越冬雁鸭类的种群动态与时空分布
作者: 邵明勤 陈斌 蒋剑虹  来源:四川动物 年份:2016 文献类型 :期刊 关键词: 越冬  水禽  丰富度  保护  生境选择 
描述:2014年10月—2015年4月,采用样点法对鄱阳湖5个区域的47个样点中越冬雁鸭类数量与分布进行了调查。共记录雁鸭类18种,包括国家Ⅱ级重点保护动物小天鹅Cygnus columbianus和白额
全文:2014年10月—2015年4月,采用样点法对鄱阳湖5个区域的47个样点中越冬雁鸭类数量与分布进行了调查。共记录雁鸭类18种,包括国家Ⅱ级重点保护动物小天鹅Cygnus columbianus和白额
鄱阳湖外围湖泊水体营养波动周年特征的比较湖沼学研究
作者: 匡武名 张萌 张金美 何宗键 彭希珑 徐军 刘足根  来源:湖泊科学 年份:2016 文献类型 :期刊 关键词: 富营养化  比较湖沼学  外围浅水湖泊  综合评估  周年动态  鄱阳湖水系 
描述:状态不稳定,在中营养-轻度富营养-中度富营养水平之间巨幅波动;军山湖相对最低,全年整体处于贫营养-中营养状态之间,处于波动上升的趋中营养状态.同时发现3个湖泊的水体富营养化程度的年内波动依赖于不同的水温
全文:状态不稳定,在中营养-轻度富营养-中度富营养水平之间巨幅波动;军山湖相对最低,全年整体处于贫营养-中营养状态之间,处于波动上升的趋中营养状态.同时发现3个湖泊的水体富营养化程度的年内波动依赖于不同的水温
鄱阳湖水道四大家鱼群落特征及幼鱼入湖格局
作者: 贺刚 方春林 陈文静 周辉明 吴斌 张燕萍 傅培峰 王生  来源:江苏农业科学 年份:2016 文献类型 :期刊 关键词: 群落组成  鄱阳湖  四大家鱼  幼鱼  入湖格局 
描述:水道四大家鱼以鲢鱼为主,其次为草鱼和鳙鱼,青鱼较少;在年龄结构上,以1龄幼鱼为主,占90%以上,且个体较小,种群结构趋向低龄化、小型化;在四大家鱼的相对丰度时间变化方面,鲢鱼无论在质量还是数量的比例上,均占绝对优势;6月初至9月底,屏峰水域四大家鱼幼鱼的数量逐渐增多,高峰期集中在7月中旬至8月底。
全文:水道四大家鱼以鲢鱼为主,其次为草鱼和鳙鱼,青鱼较少;在年龄结构上,以1龄幼鱼为主,占90%以上,且个体较小,种群结构趋向低龄化、小型化;在四大家鱼的相对丰度时间变化方面,鲢鱼无论在质量还是数量的比例上,均占绝对优势;6月初至9月底,屏峰水域四大家鱼幼鱼的数量逐渐增多,高峰期集中在7月中旬至8月底。
鄱阳湖日本沼虾捕捞种群生长与结构分析
作者: 付辉云 张燕萍 方春林 周辉明 傅培峰  来源:江西水产科技 年份:2015 文献类型 :期刊 关键词: 种群结构  鄱阳湖  日本沼虾  体长体重关系 
描述:日本沼虾为鄱阳湖的优势种群,在全湖均有分布,2013年4月至11月对鄱阳湖日本沼虾进行了调查,调查结果表明:在采集的标本中,最大体长8.1cm,最小体长1.7cm,其捕捞群体以体长为2.0
全文:日本沼虾为鄱阳湖的优势种群,在全湖均有分布,2013年4月至11月对鄱阳湖日本沼虾进行了调查,调查结果表明:在采集的标本中,最大体长8.1cm,最小体长1.7cm,其捕捞群体以体长为2.0
冬季到鄱阳湖来看鸟
作者: 张劲硕 张耳  野性中国 姚毅  来源:人与自然 年份:2005 文献类型 :期刊 关键词: 新闻报道  越冬种群  文章  鄱阳湖  白鹤  印象  候鸟保护区  1984年  冬季  大自然  国内外  自然保护区 
描述:《自然保护区探胜》中,再后来,成为《环球绿色行》的经典文章之一。那时,鄱阳湖候鸟保护区刚刚成立不久,因为发现了数量高达六七百只的白鹤越冬种群而备受国内外瞩目。
全文:《自然保护区探胜》中,再后来,成为《环球绿色行》的经典文章之一。那时,鄱阳湖候鸟保护区刚刚成立不久,因为发现了数量高达六七百只的白鹤越冬种群而备受国内外瞩目。
鄱阳湖非平稳水位波动及其与长江的交互作用关系
作者: 戴雪 万荣荣 杨桂山  来源:地理学报(英文版) 年份:2015 文献类型 :期刊 关键词: Yangtze  earlier  seasonal  intensified  downstream  lacustrine  river  representative  flood  dominate 
描述:Seasonal water-level fluctuations(WLF) play a dominate role in lacustrine ecosystems. River-lake interaction is a direct factor in changes of seasonal lake WLF, especially for those lakes naturally connected to upstream and downstream rivers. During the past decade, the modification of WLF in the Poyang Lake(the largest freshwater lake in China) has caused intensified flood and irrigation crises, reduced water availability, compromised water quality and extensive degradation of the lake ecosystem. There has been a conjecture as to whether the modification was caused by its interactions with Yangtze River. In this study, we investigated the variations of seasonal WLF in China’s Poyang Lake by comparing the water levels during the four distinct seasons(the dry season, the rising season, the flood season, and the retreating season) before and after 2003 when the Three Gorge Dam operated. The Water Surface Slope(WSS) was used as a representative parameter to measure the changes in river-lake interaction and its impacts on seasonal WLF. The results showed that the magnitude of seasonal WLF has changed considerably since 2003; the seasonal WLF of the Poyang Lake have been significantly altered by the fact that the water levels both rise and retreat earlier in the season and lowered water levels in general. The fluctuations of river-lake interactions, in particular the changes during the retreating season, are mainly responsible for these variations in magnitude of seasonal WLF. This study demonstrates that WSS is a representative parameter to denote river-lake interactions, and the results indicate that more emphasis should be placed on the decrease of the Poyang Lake caused by the lowered water levels of the Yangtze River, especially in the retreating season.
全文:Seasonal water-level fluctuations(WLF) play a dominate role in lacustrine ecosystems. River-lake interaction is a direct factor in changes of seasonal lake WLF, especially for those lakes naturally connected to upstream and downstream rivers. During the past decade, the modification of WLF in the Poyang Lake(the largest freshwater lake in China) has caused intensified flood and irrigation crises, reduced water availability, compromised water quality and extensive degradation of the lake ecosystem. There has been a conjecture as to whether the modification was caused by its interactions with Yangtze River. In this study, we investigated the variations of seasonal WLF in China’s Poyang Lake by comparing the water levels during the four distinct seasons(the dry season, the rising season, the flood season, and the retreating season) before and after 2003 when the Three Gorge Dam operated. The Water Surface Slope(WSS) was used as a representative parameter to measure the changes in river-lake interaction and its impacts on seasonal WLF. The results showed that the magnitude of seasonal WLF has changed considerably since 2003; the seasonal WLF of the Poyang Lake have been significantly altered by the fact that the water levels both rise and retreat earlier in the season and lowered water levels in general. The fluctuations of river-lake interactions, in particular the changes during the retreating season, are mainly responsible for these variations in magnitude of seasonal WLF. This study demonstrates that WSS is a representative parameter to denote river-lake interactions, and the results indicate that more emphasis should be placed on the decrease of the Poyang Lake caused by the lowered water levels of the Yangtze River, especially in the retreating season.
鄱阳湖湖区主要微生物生理群数量与环境因子关系研究
作者: 张志红 于一尊 黄江丽 张国华 谭胤静 郑国华 涂祖新 陈宇炜  来源:生态环境学报 年份:2015 文献类型 :期刊 关键词: 富营养化  鄱阳湖  氮循环微生物 
描述:·100 m L-1。氨化细菌(Ammonifying bacteria)、亚硝化细菌(Nitrosobacteria)和反硝化细菌(Denitrifying bacteria)数量较少,平均为975.11
全文:·100 m L-1。氨化细菌(Ammonifying bacteria)、亚硝化细菌(Nitrosobacteria)和反硝化细菌(Denitrifying bacteria)数量较少,平均为975.11
鄱阳湖湖区主要微生物生理群数量与环境因子关系研究
作者: 张志红 于一尊 黄江丽 张国华 谭胤静 郑国华 涂祖新 陈宇炜  来源:生态环境学报 年份:2015 文献类型 :期刊 关键词: 富营养化  鄱阳湖  氮循环微生物 
描述:·100 m L-1。氨化细菌(Ammonifying bacteria)、亚硝化细菌(Nitrosobacteria)和反硝化细菌(Denitrifying bacteria)数量较少,平均为975.11
全文:·100 m L-1。氨化细菌(Ammonifying bacteria)、亚硝化细菌(Nitrosobacteria)和反硝化细菌(Denitrifying bacteria)数量较少,平均为975.11
鄱阳湖湿地钉螺种群生态变化的初步调查 I.干旱因子对湿地钉螺分布的影响
作者: 王小红 蔡永久 王金昌 涂祖新 陈宇炜  来源:江西科学 年份:2013 文献类型 :期刊 关键词: 鄱阳湖湿地  钉螺  气候干旱 
描述:为了解鄱阳湖湿地钉螺种群生态变化的影响因子。根据2011年鄱阳湖水情的变化,参考历史螺情资料,对星子县、永修县4决草洲进行了野外调查,结合室内实验,进行时空动态螺情变化分析。因为2006、2007
全文:为了解鄱阳湖湿地钉螺种群生态变化的影响因子。根据2011年鄱阳湖水情的变化,参考历史螺情资料,对星子县、永修县4决草洲进行了野外调查,结合室内实验,进行时空动态螺情变化分析。因为2006、2007
鄱阳湖湿地钉螺种群生态变化的初步调查 I.干旱因子对湿地钉螺分布的影响
作者: 王小红 蔡永久 王金昌 涂祖新 陈宇炜  来源:江西科学 年份:2013 文献类型 :期刊 关键词: 鄱阳湖湿地  钉螺  气候干旱 
描述:为了解鄱阳湖湿地钉螺种群生态变化的影响因子。根据2011年鄱阳湖水情的变化,参考历史螺情资料,对星子县、永修县4决草洲进行了野外调查,结合室内实验,进行时空动态螺情变化分析。因为2006、2007
全文:为了解鄱阳湖湿地钉螺种群生态变化的影响因子。根据2011年鄱阳湖水情的变化,参考历史螺情资料,对星子县、永修县4决草洲进行了野外调查,结合室内实验,进行时空动态螺情变化分析。因为2006、2007
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